W83877ATG Nuvoton Technology Corporation of America, W83877ATG Datasheet - Page 17

• Manufacturer Part Number: W83877ATG
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83877ATG

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Multi-Mode Parallel Port, continued
SLCT
ERR
SLIN
INIT
SYMBOL
PIN
28
29
22
21
OD
OD
OD
OD
OD
OD
OD
OD
OD
OD
I/O
IN
IN
t
12
12
t
12
12
12
12
12
12
12
12
PRINTER MODE: SLCT
An active high input on this pin indicates that the printer is
selected. This pin is pulled high internally. Refer to the
description of the parallel port for the definition of this pin in ECP
and EPP mode.
EXTENSION FDD MODE: WE2
This pin is for Extension FDD B; its functions are the same as
those of the WE pin.
EXTENSION 2FDD MODE: WE2
This pin is for Extension FDD A and B; the function of this pin is
the same as that of the WE pin.
PRINTER MODE: ERR
An active low input on this pin indicates that the printer has
encountered an error condition. This pin is pulled high internally.
Refer to the description of the parallel port for the definition of
this pin in ECP and EPP mode.
EXTENSION FDD MODE: HEAD2
This pin is for Extension FDD B; its function is the same as that
of the HEAD pin.
EXTENSION 2FDD MODE: HEAD2
This pin is for Extension FDD A and B; its function is the same as
that of the HEAD pin.
PRINTER MODE: SLIN
Output line for detection of printer selection. This pin is pulled
high internally. Refer to the description of the parallel port for the
definition of this pin in ECP and EPP mode.
EXTENSION FDD MODE: STEP2
This pin is for Extension FDD B; its function is the same as that
of the STEP pin.
EXTENSION 2FDD MODE: STEP2
This pin is for Extension FDD A and B; its function is the same as
that of the STEP pin .
PRINTER MODE: INIT
Output line for the printer initialization. This pin is pulled high
internally. Refer to the description of the parallel port for the
definition of this pin in ECP and EPP mode.
EXTENSION FDD MODE: DIR2
This pin is for Extension FDD B; its function is the same as that
of the DIR pin.
EXTENSION 2FDD MODE: DIR2
This pin is for Extension FDD A and B; its function is the same as
that of the DIR pin.
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W83877ATF/W83877ATG
FUNCTION